尺寸与重量表
以下数值供排布与运费估算参考。关键尺寸请以最新版 ASME 标准及项目 ITP 为准。
| DN | NPS | Core pipe | Insulation (mm) | Jacket pipe | Max temp (°C) | Weight (kg/m) |
|---|---|---|---|---|---|---|
| 100 | 4" | DN100 × 4 mm | 80 | DN219 × 5 mm | 350 | 58 |
| 150 | 6" | DN150 × 4.5 mm | 90 | DN273 × 6 mm | 350 | 82 |
| 200 | 8" | DN200 × 5 mm | 100 | DN325 × 6 mm | 350 | 108 |
| 250 | 10" | DN250 × 6 mm | 110 | DN377 × 7 mm | 350 | 142 |
| 300 | 12" | DN300 × 6 mm | 120 | DN426 × 7 mm | 350 | 175 |
| 400 | 16" | DN400 × 8 mm | 130 | DN529 × 8 mm | 350 | 245 |
| 600 | 24" | DN600 × 10 mm | 150 | DN720 × 10 mm | 350 | 410 |
| 800 | 32" | DN800 × 12 mm | 160 | DN920 × 12 mm | 350 | 580 |
工厂直供质量保证：每批随货提供 EN 10204 3.1 材质证明书（MTC）
Mill Test Certificate (EN 10204 3.1) for core and jacket steel with welding and test records from in-house QC.
厂内检测与 MTC
盐山恒臻园管道 — 3000 吨液压成型源头工厂与中心实验室。本站不宣传未取得资质的第三方检验机构（如 SGS、BV、TÜV）；放行依据厂内设备实测与 EN 10204 3.1 质保书。
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1000 kN 万能材料试验机
屈服强度、抗拉强度与伸长率等力学性能试验。
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工业冷弯试验机
焊缝与母材冷弯完整性验证。
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直读光谱仪（OES）与手持 PMI
化学成分与钢号入厂/出厂核对。
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超声波探伤仪（UT）与磁粉检测（MT）
管材与焊缝关键缺陷无损检测。
本规格对应的厂内检验项目
- 100% RT or UT on core and jacket girth welds per project WPS
- Hydrostatic leak test on working core pipe before insulation closure
- Spark holiday detection on outer jacket anti-corrosion coating
- Insulation thickness verification and dry density checks on samples
材质数据
- Design steam temperature
- Up to 350 °C (chart reference; confirm for superheated service)
- Insulation structure
- Micro-porous calcium silicate + centrifugal glass wool composite in steel jacket annulus
- Jacket corrosion protection
- FBE or 3PE on outer steel shell for direct burial
- Leak detection (optional)
- Alarm wire in annulus available on request
制造与质量保证
盐山恒臻园管道 — 集成成型、热处理、机加工与无损检测，服务出口公用工程与 EPC 项目。
制造能力
- Core pipe welding, jacket assembly and insulation injection in prefabricated spools
- Medium-frequency induction bending for pre-insulated elbows when required
- 3000T hydraulic forming for complementary steam system fittings
- Factory direct export packing for district heating and industrial steam EPC
工程常见问题
The reference chart is sized for saturated steam up to 350 °C. Superheated or higher-pressure systems require individual thermal and wall thickness design.
CJ/T 200 steel-in-steel systems target higher steam temperatures. PU foam systems are used for lower-temperature hot water networks.
We do not list SGS, BV or TÜV endorsements. Quality release is based on in-house NDT, pressure testing and EN 10204 3.1 certificates.
Yes — pre-insulated elbows, reducers and special assemblies can be quoted with the straight pipe schedule.
快速询价
请注明数量、目的港与所需证书，我们将回复出厂价与交期。